I thought I could return to the overworld from the end without obtaining the egg so I could get it later. I did not obtain the egg even visited the end cities and came back to see the egg was still there. Entered the portal to the overworld and came back to the end for the egg to see it missing {}{}

Steps to Reproduce: some how i cant seem to reproduce the bug in a creative world idk what happened rip my hc world tried to get every advancement 

1. kill the dragon
2. revieve the dragon
3. kill the dragon
4. leaving the end without obtaining the egg
5. re-enter the end